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HealthyHens

HealthyHens. WP0: Common cross sectional design. Husbandry Feeding Hygiene other Management (Genetics). WP1: Parasite infestation. Laying performance. WP2: Use of free range. Mortality. WP3: Feather and injurious pecking. Body weight. WP4: Other health problems

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HealthyHens

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  1. HealthyHens WP0: Common cross sectional design Husbandry Feeding Hygiene other Management (Genetics) WP1: Parasite infestation Laying performance WP2: Use of free range Mortality WP3: Feather and injurious pecking Body weight WP4: Other health problems (e.g. keel bone and foot lesions)

  2. Epidemiological approach with cross sectional design 110 organiclayerflocks 2 farmvisits slaughterhousevisitsfor 55 flocks 8 project partners in 8 countries University of Kassel, Germany FondazioneCRPA Studi Ricerche, Italy AarhusUniversity, Denmark ADAS UK Ltd., United Kingdom Louis Bolk Institute, The Netherlands University ofVeterinaryMedicine Vienna, Austria SwedishuniversityofAgriculturalSciences, Sweden Institute forAgriculturalandFisheries Research, Belgium HealthyHens

  3. HealthyHens Results so far: • Sample covers a widerangeofproductionconditions • e.g. coveredverandas, single/multitier, rangerotation • Most outcomesshow a gooddistribution • Infectionwith A. galli and Heterakis: 61 % of flocks at the end of lay • Featherpecking: 0 to 100 % • (Pecking) wounds: 0 to 96 % • Keelbonefractures: 0 to 88 % (mean 28 %) • Keel bone deviations: 0 to 84 % (mean 31 %) • A fewoutcomeswithverylow prevalence • Haematomas at keelbone • wormsotherthan A. galli and Heterakis (but worminfection in generalfollows A. galli and Heterakis infectionpattern)

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